Trepostomatida

Trepostomata Temporal range: Early Ordovician–Triassic PreЄ Є O S D C P T J K Pg N
Esthoniopora, a trepostome from the Ordovician of Estonia (cross-section).
Scientific classification
Kingdom:	Animalia
Phylum:	Bryozoa
Class:	Stenolaemata
Order:	†Trepostomata Ulrich 1882
Families
Heterotrypidae Monticuliporidae

Heterotrypidae
Monticuliporidae

Trepostomata (the trepostomates) is an extinct bryozoan order in the class Stenolaemata.